Answer
Verified
393k+ views
Hint :Generally we call it the Raschig - Hooker process. This process is used for production of phenol. We use Rasching’s process for the preparation of chlorobenzene. After that we convert the obtained chlorobenzene to phenol by hydrolysis that is by adding water.
Complete step by step solution:
In the first step we convert the benzene into chlorobenzene. That is when benzene reacts with hydrochloric acid in the presence of oxygen we will get chlorobenzene. In this step we use either copper or iron chloride catalyst and we expose the material to air at $ {400^0}C $ .
In step two we convert the obtained chlorobenzene into phenol by hydrolyses. In this step we expose the material (chlorobenzene) to a steam at $ {450^0}C $
Additional Information:
Phenol is a useful precursor to a huge collection of drugs, most notably aspirin but also several herbicides and pharmaceutical drugs. Phenol by-products have been used in the making of cosmetics including hair colouring, sunscreens and in skin lightening preparations.
Note:
As we can see that the reaction is taking place at high temperature in a very acidic environment with hydrogen chloride vapour and therefore the industrial setting must use highly corrosion resistant equipment for the reaction. However we can prepare phenol by many methods. That is by Dow process, preparation of phenol from cumene or from haloarenes or from benzene sulphonic acid, Air oxidation of cumene and many others.
Complete step by step solution:
In the first step we convert the benzene into chlorobenzene. That is when benzene reacts with hydrochloric acid in the presence of oxygen we will get chlorobenzene. In this step we use either copper or iron chloride catalyst and we expose the material to air at $ {400^0}C $ .
In step two we convert the obtained chlorobenzene into phenol by hydrolyses. In this step we expose the material (chlorobenzene) to a steam at $ {450^0}C $
Additional Information:
Phenol is a useful precursor to a huge collection of drugs, most notably aspirin but also several herbicides and pharmaceutical drugs. Phenol by-products have been used in the making of cosmetics including hair colouring, sunscreens and in skin lightening preparations.
Note:
As we can see that the reaction is taking place at high temperature in a very acidic environment with hydrogen chloride vapour and therefore the industrial setting must use highly corrosion resistant equipment for the reaction. However we can prepare phenol by many methods. That is by Dow process, preparation of phenol from cumene or from haloarenes or from benzene sulphonic acid, Air oxidation of cumene and many others.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Write the differences between monocot plants and dicot class 11 biology CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Why is there a time difference of about 5 hours between class 10 social science CBSE